The SAP2000 bridge modeler provides design templates for conventional deck-section types, including flat slab, concrete box girder, and steel girder with a cast-in-place deck. Modeling of deck types not available through the bridge modeler must be done with direct methods. The advanced SAP2000 modeling features available for direct bridge-deck modeling include the following:
Spine model
- Use the section designer to develop the bridge cross section.
- Model the bridge superstructure using frame elements to extend the cross section. For complex bridge profiles, SAP2000/Bridge allows users to create bridge geometry using dummy bridge deck sections, then replace the dummy sections with a selection from the section designer.
Area model
- Use frame elements to develop the bridge-deck cross section.
- Create area elements by using the 'Edit' > 'Extrude' > 'Extrude Lines to Areas' option to extrude frame elements along bridge layout lines. Users may specify an advanced extrusion path using custom coordinates or a predefined curve.
Solid model
- Use shell elements to develop the bridge deck cross section.
- Extend the shell elements into solid elements by extruding the cross section along bridge layout lines using the 'Edit' > 'Extrude' > 'Extrude Areas to Solids' option.
